Brush Research GBD40024 FLEX-HONE, 4 (101mm) Diameter, 240 Grit, Silicon Carbide Abrasive (Pack of 1)

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$49.37

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(30000 available )

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100 Ratings
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Reviews
  • Miss Beatrice Stanton III

    > 3 day

    I still use this to restore my Onan p218 and p220 engines.

  • Hunt’s Workshop

    > 3 day

    This was so easy and idiot-proof. Absolutely fantastic results!

  • Thomas Hughes

    > 3 day

    ....looks great, arrived fast!

  • Zephrant

    > 3 day

    Easy enough to use, worked well. Easily completed a 307 V8 engine. Not sure how many more it could do, but no visible wear on it. Ill have to store it for decades before Im likely to use it again though.

  • Lloyd

    > 3 day

    Product did job as advertised worked really well

  • Kenneth Puzio

    > 3 day

    This hone did a nice job on a pair of Harley Twincam cylinders. New rings seated in nicely and had a good seal.

  • Skippy

    > 3 day

    These things are awesome. makes short and nice work honing cylinders.

  • Chris

    > 3 day

    This honing brush is easy to use, is high quality and worked just as described. You do need to ensure you move at a quick and consistent pace to get a good cross hatch. I recommend this tool for anyone looking to refresh and engine.

  • Connor

    > 3 day

    Used the 89mm size hone for my 84mm cylinders in my 52 motor and seemed to work good. Just lubed it up with some motor oil and followed instruction and the cross hatching seemed to come out really good, gotta speed it up on the last few strokes or else your cross hatches will not be close to 45 degrees which I found out quick enough.

  • alicia

    Greater than one week

    Great

The Flex-Hone® tool was originally created by Brush Research Manufacturing to deglaze cylinder walls in automotive applications. Brush Research embraced the benefits of a plateau finish and pioneered the concept of plateau honing culminating in the introduction of the Flex-Hone tool in 1972. The Flex-Hone has gained many nicknames over the years and including ball hone, ball style hone, flexihone, dingleberry hone, bead brush, glaze breaker and glaze buster. Flexible honing with the Flex-Hone tool produces an oil holding cross hatch pattern and a true plateau finish free of cut, torn and folded metal. Any type or size of cylinder can benefit from the Flex-Hone®. These abrasive bead style brushes are produced in standard diameters from 4mm to 36 inches. Nine abrasive types are offered including silicon carbide, aluminum oxide, boron carbide and diamond allowing the tool to be tailored to finish any base material. A choice of 11 different grit selections are available for precise control of finish parameters. The elimination of peaks results in rapid ring seating, better oil control, reduced seepage in hydraulic and pneumatic applications and provides better seal performance and longer seal life. Successful applications include firearm chambers, shotgun barrels, musical instruments, combustion chambers, air compressors, pumps, valve bodies, valve guides, brake cylinders, wheel cylinders and the list goes on and on. Flex-Hone® tools are also very effective for deburring cross drilled holes, port radiusing and edge blending. Because of its unique construction, the Flex-Hone is self-centering, self-aligning, and self-compensating for wear so it does not require an elaborate set-up or special training. Deburring can be effectively automated and combined in the machining process to allow a complete cylinder finish in one operation or it can be employed as a secondary operation with equal results.

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